Thanks for the ideas.
Adventure games mostly. God Of War is simply incredible. If your wife is against gambling she probably won't like Grand Theft Auto too much but those games are very well done.
Also: Burnout 3, Jak and Daxter, Ratchet and Clank: Up Your Arsenal, Metal Gear Solid, and Devil May Cry.
I don't know if you like soccer but Konami made an awesome soccer sim called Winning Eleven 8. Far better than FIFA in my opinion. Although I hate WWE, the wrestling games can be fun. PS2 has some sweet fighting and RPG games but they are more intense and time consuming.